4) Consider a separate rocket, also in deep space with a mass of 30.0 kg. If the rocket is

observed to be travelling at v = 5.00m/s at t = 3.00 s and then travelling at v = - 2.00m/s at t = 14.0 s

with constant acceleration, calculate:

a) the acceleration, à.

b) the force F, acting on the rocket from the thrusters.

Question

Keith Roy

Physics

7 September, 04:06

4) Consider a separate rocket, also in deep space with a mass of 30.0 kg. If the rocket is

observed to be travelling at v = 5.00m/s at t = 3.00 s and then travelling at v = - 2.00m/s at t = 14.0 s

with constant acceleration, calculate:

a) the acceleration, à.

b) the force F, acting on the rocket from the thrusters.

+5

Answers (1)

Know the Answer?

Cale Tapia · Answer 1

a) Acceleration is the change in velocity over change in time.

a = Δv / Δt

a = (-2.00 m/s - 5.00 m/s) / (14.0 s - 3.00 s)

a = - 7/11 m/s²

a ≈ - 0.636 m/s²

b) Force is mass times acceleration.

F = ma

F = (30.0 kg) (-0.636 m/s²)

F = - 19.1 N